The BodyKore GR631 Leg Press / Calf Extension is a commercial selectorized strength machine that combines two essential lower-body movements in a single station. As a leg press it drives the quadriceps, hamstrings and glutes through a guided pressing path, and as a calf extension it isolates the gastrocnemius and soleus to build lower-leg strength and definition. The dual-function design makes it a space-smart choice for facilities that want full lower-body coverage from one footprint, serving beginners, general members and experienced lifters alike.

Resistance comes from a 220 lb selectorized weight stack that adjusts with a single pin, so users move between leg-press and calf-extension work or change loads in seconds. The sealed guide-rod system delivers the smooth, predictable resistance that commercial gyms rely on for high-traffic durability and a quiet, consistent feel. As members get stronger, the stack upgrades to 340 lb, letting one machine keep pace with advancing athletes without a costly replacement down the road.

The GR631 is built on a rolled steel oval-tube frame finished in black or silver, engineered to withstand daily commercial use. The pressing carriage and foot plate track on hardened guide rods for a stable, repeatable path through both exercises, while adjustable positioning aligns the hips, knees and ankles for efficient force transfer and safer mechanics. The result is a biomechanically sound platform that keeps tension on the working muscles through a full range of motion in both the leg press and calf extension.

Measuring 68" x 40" x 65" and weighing 582 lb, the GR631 occupies roughly 24 square feet, giving it a stable, planted feel without monopolizing a strength area. It is backed by a lifetime frame warranty per BodyKore, reflecting its heavy-duty construction. The dual-function GR631 fits commercial gyms, hotel and multifamily fitness centers, physical-therapy clinics and serious home gyms that need two lower-body stations’ worth of training from one durable, light-commercial machine.

Specifications

Downloads

• BodyKore GR631 Leg Press / Calf Extension Spec Sheet (PDF)